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Ion Drift Measurements Around a Grounded Sphere in Magnetized Sub‐Sonic Plasma Flows |
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| Authors: | K. J. Brunner O. Grulke D. Niemczyk T. Klinger |
| Affiliation: | 1. Institut für Physik, Universit?t Rostock, D‐18051 Rostock, GER;2. now: Department of Physics, Durham University, South Road, Durham DH1 3LE, UK;3. Max‐Planck‐Institut for Plasma Physics, Wendelsteinstra?e 1, 17491 Greifswald, GER;4. Ernst‐Moritz‐Arndt‐Universit?t Greifswald ‐ MNF, Friedrich‐Ludwig‐Jahn‐Stra?e 17a, 17487 Greifswald, GER |
| Abstract: | The ion kinetics around a spherical object immersed in a sub‐sonic flowing plasma has been investigated by non‐invasive laser induced fluorescence for direct measurement of the ion velocity distribution function. The measurements are compared to Langmuir probe and emissive probe measurements. Indications for ion focusing as observed by previous works were observed. The plasma under observation was varied in magnetization and mean parallel plasma drift. The experiments were conducted in the linear plasma device VINETA at the Max‐Planck‐Institute for Plasma Physics in Greifswald. (© 2014 WILEY‐VCH Verlag GmbH & Co. KGaA, Weinheim) |
| Keywords: | Low temperature plasmas linear plasma devices ion kinetics laser induced fluorescence ion focusing |